// Copyright 2017 Xiaomi, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package utils

import (
	"regexp"
	"strings"
)

func IsUsernameValid(name string) bool {
	match, err := regexp.Match("^[a-zA-Z0-9\\-\\_\\.]+$", []byte(name))
	if err != nil {
		return false
	}

	return match
}

func HasDangerousCharacters(str string) bool {
	if strings.Contains(str, "<") {
		return true
	}

	if strings.Contains(str, ">") {
		return true
	}

	if strings.Contains(str, "&") {
		return true
	}

	if strings.Contains(str, "'") {
		return true
	}

	if strings.Contains(str, "\"") {
		return true
	}

	return false
}
